Powertrain
generic / SAE
P2DA9
DC/AC Converter Control Module A Switch A Circuit Range/Performance
The DC/AC converter switch A response is outside calibration. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberD / A9
Possible causes
- Switch aged - response slowed high
- High-resistance contact medium
- Sensor element aged beyond calibration window low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2500 €
- Estimated time: 2–8 h
- Component: dcac converter module a switch a
- Component: wiring harness
- Component: hybrid control module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012